Window-screen attachment



Nov. 26, 1929. c, BURRQWES 1,737,041

' WINDOW S CREEN ATTACHMENT Filed Dem-12, 1927 Fey. 4-.

5 Irv 21110)".

Patented Nov. 26, 1929 UNITED STATES PATENT; OFFICE WINDOW-SCREEN ATTACHMENT Application filed December 12, 1927. Serial No. 239,501.

The principal objects of this invention are to permit the use of screens in window openings without interfering with the operation of the window sash and to provide means for holding window screens between the sliding sash which will allow the ready removal and replacement 01 the screen.

A still further object is to devise a means for securing the screen holder in place without cutting or mutilating the window parting strip and which will permit of perfect freedom of movement of both the sash.

The principal feature of the invention consists in the novel construction of an extensible grooved holder for holding the screens in place and of the means for securing the extensible member in position between the window sash whereby the ends. of the extensible member are inserted into a recess in a fastening plate and are secured in hooked engagement therewith, the holding plate permitting the end edges of the screen to extend into close relation with the window structure to close the opening.

In the drawings, Figure 1 is a perspective view of the lower portion of a Window frame showing the lower sash raised and my im proved window screen holder in place.

Figure 2 is an enlarged perspective part sectional detail of my improved holder and screen.

Figure 3 is a vertical mid-sectional elevation through the screen holder.

Figure 4k is an elevational detail of a modified construction of screen holder.

In the use of window screens for preventing the ingress of insects while permitting tree ventilation through the window opening, it is desirable that the window sash may be raised or lowered to a more or less degree in accordance with existing atmospheric con ditions, both inside and out, and it is therefore desirable to place the insect protecting screens in the space formed by the parting strips between the upper and lower sliding sash. It is also very desirable that such screens be easily removed or replaced so that the window opening may be free of access for reaching out from the inside, such for 59 instance, in the course of ordinary household duties it is frequently desirable to shake a cloth or brush out of the window, but more particularly where access to the outside of the windows is required for cleaning same.

According to the present invention the screens 1 are of a well-known standard type, having thin metal edge frames 2. Secured to the window sill 3 at the bottom of the window opening and in direct alignment with the parting strips 1 which separate the sash is placed a trough-shaped metal strip. This strip is preferably made in telescoping sections 5 and 6 which allow the strips to be fitted closely against the parting strips in different widths of windows.

Secured to the parting strip 4 a suitable distance from the sill according to the height of screen that is to be used or a suitable distance down from the bottom of the window frame where a screen is placed in the top of the frame, are a pair of narrow metal plates 7. These plates are of slightly lesser width than the width of the partingstrip and are pressed up With a raised elongated central portion 8 in which is formed a rectangular shaped recess. 9.

Portions of the plates 7 sloping "from each end of the recess 9 are formed with narrow slits 10 of slightly greater Width than the thickness of the screen frames 2. These slits permit the edges of the screen frames to be butted close up to the plates so that they will only be separated from the edges of the parting strips by the thickness of the plates.

Extendingacross the window opening between the plates 7 is a telescopic grooved member 11. This is formed in two sections, the outer one of which is provided with the side flanges 12 having inwardly turned edges 13. The other portion of the telescopic member is formed with side flanges 1 1 which fit in sliding engagement with the side flanges 11132 and inturned edges 13 of the outer mem- The outward ends of each of these telescopic members are formed with hook-shaped lug ends 15 which may be a part of the flanged members or may be formed separately and secured thereto by riveting, wielding or soldering.

other portions of the The lug ends extend downwardly and upwardly of the top of the U-shaped members and are of a width to permit their free entry into the rectangular recesses 9 in the plates 7.

In placing the telescopic grooved members in position they are extended until the lug ends 15 at both ends enter the recesses 9 and when they are being arranged for a lower screen they are allowed to drop till the connecting portions thereof engage the bottom ends of the recesses and the hooked portions then are hooked into the central raised portion of the plates.

When the telescopic members are placed in the upper position for a top screen the T' shaped end lugs engage in the recesses'of the plates 7.

The side flanges of the telescopic members hold the screens in position, said screens being usually formed in two frames for each opening so that they may be moved inwardly to facilitate their removal and moved outwardly to fit into the slits 10 in the plate 7 to practic'ally completely close the opening below the sash.

It will be readily seen that with a holder such as described the removal of the screens is rendered very simpl'e,it being merely necessary to lift the telescopic bar until the lug ends 15 disengage from the recesses 9 when the telescopic may be lifted entirely out and the screens thus freed may be also lifted out and in replacement it is merely necessary to put the screens in position into the bottom holder'and then slip the removable telescopic member into place, hooking it into the holder plates.

The plates 7 are made as nearly flat as possible, the central portions being dished from the edges and preventing bevelled surfaces both at the sides and the ends to permit the free movement of the central meeting rails'of the window sash past the same when the screens are removed.

It will be readily understood that the device is very easily attached. The screens will be placed in position in the window frame, the telescopic holder placed on the edge thereof and the end plate then slipped into position and when in the proper position to lock the end lugs of the telescopic member theholding pins 16 may be placed therein.

WVhat I claim as my invention is:

1. A window screen attachment, comprising anextensible channeled member adapted to engage and hold the'screens in place and having flanged outer ends, and a pair of plate members adapted to be permanently secured to the window frame, said plates being slotted to receive the flanged ends of said channeled member and engage the same in locking contact.

2. A window "screen attachment, comprising an extensible member having lug extensions at the ends of a lesser width than the extensible member, and plate members adapted to be permanently secured to the window frame and having a raised central portion formed with an opening therein adapted to receive the end lugs of the extensible memher, the edges of the opening being adapted to interlock with said end lugs.

3. A window screen attachment, comprising a channeled extensible member adapted to engage and hold the screens in position and having hooked lug ends, plates adapted to be permanently secured to the window frame having a central portion dished outwardly to form a shallow recess and presenting a sloping and curved external surface, said plates each having a central opening adapted to receive the hooked ends, and slits extending lengthwise from said opening to receive the edges of the adjacent screens.

4. A window screen attachment, comprising a pair of telescopic channel bars each having a right angularly turned lug end of lesser width than the channel bar, and a pair of long narrow plates adapted to be secured on the face of the parting strip between the sash of a window and having the central portion thereof dished outwardly to form a sl1al low recess on the back thereof, each of said plates hav 1g an opening centrally arranged in the recess adapted to receive the hooked ends of the channeled telescopic bar.

GILBERT CHARLES BURROWES. 

